No.  Please honor all the work put into this and act ethically by all parties purchasing the books.  The price has been kept very nominal to make it available to everyone. That being said, we all benefit from families and teachers getting the help they need.  iI is possible that this may be open source at some point but please honor the current status and purchase the material.

Please feel free to let other parents and teachers know that these resources are  available.  We all win!